diff --git a/scripts/Windows/OS/Setup.ps1 b/scripts/Windows/OS/Setup.ps1
index f0348e53..61077e42 100644
--- a/scripts/Windows/OS/Setup.ps1
+++ b/scripts/Windows/OS/Setup.ps1
@@ -32,7 +32,7 @@ $oobeSystemSettings = Get-PassSettings "oobeSystem";
 $oobeSystemSettings.SelectSingleNode("./ua:component/ua:FirstLogonCommands/ua:SynchronousCommand[last()]/ua:CommandLine", $namespace).InnerText += "`npwsh '$env:SETUP_SCRIPT_NAME';";
 
 if ($Global:SetupConfigPostprocessor) {
-    $Global:SetupConfigPostprocessorpartitionCreations.Invoke($unattendedConfig, $namespace);
+    $Global:SetupConfigPostprocessor.Invoke($unattendedConfig, $namespace);
 }
 
 $unattendedConfig.PreserveWhitespace = $true;